/* 去除基本样式 */
*{
  margin: 0px;
  padding: 0px;
}
/* 设置背景图片 */
body{
  background-image: url("../image/bg_img.jpg");
  background-size: cover;
}
#head{
  margin: 20px 20px;
}
#doro_logo{
  width: 120px;
}
/* 中间部分 */
#center{
  width: 500px;
  height: 50px;
  font-size: 25px;
  margin: 60px auto;
}
#center form input{
  width: 250px;
  height: 30px;
  font-size: 18px;
  padding-left: 8px;
}
#center form img{
  width: 30px;
  position: relative;
  top:10px;
  right: 40px;
}
#center form .btn{
  border: none;
  border-radius: 6px;
  width: 120px;
  height: 40px;
  margin-left: 60px;
}
/* 调form中每行的距离 */
#center form div{
  margin-top: 35px;
}
/* 文本框的对齐 */
#center form span{
  color: white;
  font-weight: bold;
  display: inline-block;
  width: 130px;
  text-align: right;
}
#footer p{
  position: fixed;
  bottom: 10px;
  width: 100%;
  color: white;
  font-weight: bold;
  text-align: center;
}